498 Scientific Intelligence. 
1876. 1877. 1878. 1879. 1880. 
January| 1°36 3°00} 3°47 18°00] 5°83 5°50] 2°64 20°50) 4:02 5:00 
Febru’y | 5-26 13°00) 1°50 2°50) 5.71 9°00) 3°88 11°50} 3°79 8°50 
March _|10°90 5:00} 8:30 5:00; 2°95  __..| 4°93 10°50] 3°63 10°00 
April -| 4 Ceex[ 20 2.2) 218 22] th Sg ese 
May) SOL Ey 2 or ae sly tyes Aiphone (ies fhe | Semmes 
Sune a or ORS Socotra 00 | 204 
he POD cc Dab ee PAO on B08 a 88 cae 
PeURUSe 4°69. ee RR SG et Bde el G2). os 
hs 5°00 Se SE oy SR ey ae ds) Gee eine RS Dh saat ie 
Oc@ebver! 1-44). 1-00) B34" ots a0 See es 
Novem. | 4:37 «1°50} 6°81 .___]| 5°87 *5b0| 2°00 1°50) 2°87 1°00 
Decem’r} 4°19 24°50] 1°76 ___| 7:06 7°00) 4:19 17°50) 3°00 16°50 
Total __|54°20 48°00/47°82 25°50}54°52 22°00 49°79 51°50 42°85 41°00 
FINAL AVERAGES. 
Total rain-fall Monthly Total fall of snow Monthly 
for each month. Average. for each month. Average. 
January 88°44 4:020 307°30 14°66 
Febrt ry 25. 82°40 3.745 232°T5 11°08 
} Be Ge 95°03 4°318 134°50 6°41 
EE ore 94°46 4°107 56°00 2°66 
Mie eo 100-40 4365 eee an 
une 92°51 4°020 ee eee 
Pale ons 85-96 3°739 ee aS 
AUPE oo 126715 5°734 ‘spans eee 
September 78°46 3°566 oe os 
October . .._. 87°22 3°963 1-00 05 
November ___ 89°44 4065 34°50 16 
I 85°34 3°880 228°40 10°87 
Total rain-fall for 22 vears and 4 Wionths.. 2. 1,105-81 inches. 
Average sere = fall (including choad snow) 49°52 
Total fall of s 994°45 
verage saieal ‘Tall of snow 45°89 
SCIENTIFIC INTELLIGENCE. 
ae CHEMISTRY AND PHysIcs. 
ce On the Direct hesis of Ammonia.—W hile passing nitro-- 
n gas over ond “hyadrogentzed copper at a red heat, Jounson 
observed. the formation of traces of ammonia. He therefore re- 
